Richard LambartRichard Lambart may refer to:Richard Lambart, 2nd Earl of Cavan, Member of Parliament for Kilbeggan Richard Lambart, 4th Earl of Cavan, Irish peerRichard Lambart, 6th Earl of Cavan, Anglo-Irish peer and soldierRichard Lambart, 7th Earl of Cavan, British military commander throughout the Napoleonic era and beyond